CVP Brown Bag Seminar- "Visualization and Data Compression for Geophysical Fluid Dynamics Data"

03/07/2018 - 12:00pm to 1:00pm
ML Chapman Room

"Visualization and Data Compression for Geophysical Fluid Dynamics Data"

Pablo Mininni
University Buenos Aires and CONICET

The need for more accurate simulations of geophysical flows has led to ever growing spatial resolution and more complex numerical models. The quantities modeled lay in many cases in different grids or are gridless, such as particles advected and mixed by a turbulent flow. The increase in spatial resolution and the integration of particles creates new challenges in the parallelization of fluid dynamics codes, and on how data is later analyzed and visualized. In this talk, I will discuss parallelization methods to deal with the integration of millions of particles transported by a flow, and possible ways to visualize and extract meaningful scientific information from this datasets. Finally, given the difficulties of coping with the vast volumes of data produced by current simulations, I will present a study of the effect of applying lossy compression in computational fluid dynamics simulation outputs.


I received my diploma in 1999 and my doctoral degree in 2003, both in physics and from the University of Buenos Aires (UBA) in Argentina, under the supervision of Daniel Gomez. From 2004 to 2007 I was a postdoc and later a scientist at National Center for Atmospheric Research (NCAR), in Boulder, CO, USA, working under the supervision of Annick Pouquet, David Montgomery, and Darryl Holm. I continued working for NCAR as a part-time scientist from 2007 to 2012. Since 2007 I am a professor at the Physics Department at UBA, where I was also the chair of the department from 2011 to 2015. I received the Houssay prize (Argentina) in 2010, and the ICTP prize (UNESCO/Italy) in 2012.
I work on the numerical and theoretical study of turbulent flows, with applications in astrophysics, geophysics, and atmospheric sciences. In the field of fluid dynamics, my expertise includes parallelization methods for computational fluid dynamics, the application of statistical methods for the characterization and analysis of turbulent flows, spectral analysis of multi-scale and multi-physics phenomena, and sub-grid modeling for turbulent flows. Applications include the solar cycle and turbulent dynamos, magnetic reconnection, rotating and stratified turbulence, and superfluid turbulence. Recently, I also became interested in experimental aspects of fluid dynamics applied to the study of geophysical flows.

Wednesday, March 7, 2018
12:00 p.m. - 1:00 p.m.
Mesa Lab, Chapman Room